Patents by Inventor Anna Ya Ching Feng

Anna Ya Ching Feng has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Method for producing LED by one step film lamination
    Patent number: 11923483
    Abstract: The present invention relates to method for producing LED by one step film lamination. The method comprises: laminating two or more LEDs with two or more colored phosphor films by one step film lamination; wherein each of the colored phosphor film comprises each other different colored phosphor composition which has a Maximum tan ?; and the difference of each Maximum tan ? varies within a range of 0-30%. In the present invention, the method for producing a LED may greatly improve production efficiency (i.e., dual and multi-color LEDs in one step) and lower cost of ownership. Further, it may improve uniformity of phosphor dispersion, thereby improve color quality of LEDs.
    Type: Grant
    Filed: May 18, 2018
    Date of Patent: March 5, 2024
    Assignees: DDP SPECIALTY ELECTRONIC MATERIALS US, LLC, ROHM AND HAAS ELECTRONC MATERIALS LLC
    Inventors: Anna Ya Ching Feng, Lu Zhou
  • UV CURABLE SILICONE COMPOSITION AND AN ENCAPSULANT OR A SHEET FILM THEREOF
    Publication number: 20230348721
    Abstract: A UV curable silicone composition has exceptional curability by ultraviolet irradiation.
    Type: Application
    Filed: July 10, 2023
    Publication date: November 2, 2023
    Inventors: Shunya Takeuchi, Anna Ya Ching Feng, Yutaka Oka, Jung Hye Chae
  • UV curable silicone composition and an encapsulant or a sheet film thereof
    Patent number: 11781016
    Abstract: A UV curable silicone composition has exceptional curability by ultraviolet irradiation.
    Type: Grant
    Filed: February 12, 2021
    Date of Patent: October 10, 2023
    Assignees: DuPont Toray Specialty Materials Kabushiki Kaisha, Rohm and Haas Electronic Materials LLC, Rohm and Haas Electronic Materials Korea Ltd.
    Inventors: Shunya Takeuchi, Anna Ya Ching Feng, Yutaka Oka, Jung Hye Chae
  • Method of manufacturing an optoelectronic device
    Patent number: 11670741
    Abstract: Disclosed is a method of making an optoelectronic device that incorporates a crosslinked resin-linear polyorganosiloxane.
    Type: Grant
    Filed: July 13, 2018
    Date of Patent: June 6, 2023
    Assignees: Rohm and Haas Electronic Materials LLC, DuPont Toray Specialty Materials Kabushiki Kaisha, DDP Specialty Electronic Materials US 9, LLC
    Inventors: Masaaki Amako, Anna Ya Ching Feng, Fumito Nishida
  • UV CURABLE SILICONE COMPOSITION AND AN ENCAPSULANT OR A SHEET FILM THEREOF
    Publication number: 20210269642
    Abstract: A UV curable silicone composition has exceptional curability by ultraviolet irradiation.
    Type: Application
    Filed: February 12, 2021
    Publication date: September 2, 2021
    Inventors: Shunya Takeuchi, Anna Ya Ching Feng, Yutaka Oka, Jung Hye Chae
  • METHOD FOR PRODUCING LED BY ONE STEP FILM LAMINATION
    Publication number: 20210226100
    Abstract: The present invention relates to method for producing LED by one step film lamination. The method comprises: laminating two or more LEDs with two or more colored phosphor films by one step film lamination; wherein each of the colored phosphor film comprises each other different colored phosphor composition which has a Maximum tan ?; and the difference of each Maximum tan ? varies within a range of 0-30%. In the present invention, the method for producing a LED may greatly improve production efficiency (i.e., dual and multi-color LEDs in one step) and lower cost of ownership. Further, it may improve uniformity of phosphor dispersion, thereby improve color quality of LEDs.
    Type: Application
    Filed: May 18, 2018
    Publication date: July 22, 2021
    Inventors: Anna Ya Ching Feng, Lu Zhou
  • SILICONE COMPOSITIONS AND ARTICLES FOR CONTROLLING LIGHT
    Publication number: 20200144459
    Abstract: Disclosed is a method of making an optoelectronic device that incorporates a crosslinked resin-linear polyorganosiloxane.
    Type: Application
    Filed: July 13, 2018
    Publication date: May 7, 2020
    Inventors: Masaaki Amako, Anna Ya Ching Feng, Fumito Nishida